This study aims to investigate the differences in sleep stages and total sleep duration between individuals diagnosed with sleep bruxism and healthy controls. This will be achieved through the use of smartwatches, which offer advantages such as rapid data acquisition, easy accessibility, long-term monitoring capabilities, and the potential to engage a large number of participants.

It is anticipated that the findings of this study will serve as a pioneering effort in utilizing smartwatch applications for the continuous monitoring of sleep bruxism patients. Furthermore, it is expected to provide an alternative methodology for evaluating the impact of bruxism treatments on sleep quality, thereby contributing significantly to the existing literature. As smartwatches become more prevalent in health tracking, it is also envisioned that application developers will increasingly prioritize this area in their software development and updates

Inclusion Criteria:

• • Age 18-50 years.

  • Complete natural dentition (excluding third molars).
  • Willingness to wear a smartwatch for 7 consecutive nights.

Exclusion Criteria:

• • High risk of Obstructive Sleep Apnea (OSA): Candidates with a STOP-Bang questionnaire score ≥3 or Body Mass Index (BMI) >30 kg/m² were excluded. This was a critical step to ensure that any observed sleep fragmentation was not attributed to respiratory events [21].

  • Systemic and Psychiatric Conditions: History of neurological disorders, psychiatric diagnosis, or systemic diseases (e.g., diabetes, hypertension, gastroesophageal reflux disease) that could alter sleep physiology.
  • Medication Use: Current use of medications affecting the central nervous system or sleep architecture (e.g., antidepressants, sedatives, muscle relaxants).
  • Lifestyle Factors: Excessive alcohol/caffeine consumption, shift work, or irregular sleep-wake schedules.
  • Acute Pain: Presence of acute temporomandibular disorder (TMD) symptoms (e.g., painful restriction) to avoid pain-related sleep disturbances.

The study population will consist of two distinct groups: individuals diagnosed with sleep bruxism and healthy controls, both aged between 18 and 50 years. Participants with sleep bruxism will be recruited from the Oral and Maxillofacial Clinic of Cappadocia University, who have received a definitive diagnosis of sleep bruxism. Healthy control participants, without a history of sleep bruxism or any other sleep disorder, will be recruited from the general community via [e.g., local advertisements, university staff/students, hospital staff]. Both groups will be selected based on specific inclusion and exclusion criteria to ensure homogeneity within groups and to facilitate a clear comparison of sleep stages and total sleep duration using smartwatch data.